InboxCop is a transparent and effective spam filter that works with many account types. This software supports POP, IMAP, AOL, MSN, Yahoo and Hotmail accounts for spam. Its Graphical User Interface a bit clumsy and filtering can be slow. It uses heuristic as well as Bayesian-style filters and can sort out foreign language spam. The user can also keep personal lists of friends, mailing lists and blocked senders in this tool. The detected spam is placed in a special folder where it can be reviewed and recovered. It supports Windows 9x/ME/NT/2000/3/XP. You can submit wrongly classified email for filter improvement easily.
